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9f474a019f
Summary: Add a -preserve-modules option to llvm-link that simulates LTO clients that don't destroy modules as they are linked. This enables reproduction of a recent bug introduced by a metadata linking change that was only caught when the modules weren't destroyed before writing bitcode (LTO on Windows). See http://llvm.org/viewvc/llvm-project?view=revision&revision=253170 for more details on the original bug and the fix. Confirmed the new test added here reproduces the failure using the new option when I suppress the fix. Reviewers: pcc Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D14818 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253740 91177308-0d34-0410-b5e6-96231b3b80d8